sodium hydrosulfite

The technology and parameters of producing feed grade zinc oxide from chemical industry by-product sodium hydrosulfite were studied. The effective ways to reduce contents of Pb, Cd and to increase purity of feed grade zine oxide were discussed.

对利用化学工业保险粉副产品生产饲料级氧化锌的工艺以及参数进行了研究，探讨了降低重金属Pb、Cd含量，提高饲料级氧化锌纯度的有效途径。

In addition, Used as reductant, the sodium hydrosulfite not only have many problems in transport, storage and security but is also one of the major source of the pollution.

还原净洗使用的保险粉不仅存在运输、储备、安全等方面的问题也是造成污染性废水的重要源头之一。

A method of determining alkalinity and sodium hydrosulfite content in indigo solution, using potentiometer, is reported.

本文提出了一种精确测定靛蓝染液的碱度和保险粉含量的方法———电位法, 并同化学法进行了比较.

Methods The adduct of andrographolide with sodium hydrosulfite was administered to the rats by i.p.

方法大鼠连续4周腹腔给予穿心莲内酯亚硫酸氢钠加成物250、500、1000mg。

Research on CTMP bleaching with sodium hydrosulfite as the second stage

化学热磨机械浆连二亚硫酸钠第二段漂白技术研究

The system includes an on-line real-time the concentration of sodium hydrosulfite detecting device.

介绍一种控制染液中保险粉浓度的系统。该系统能实时在线检测保险粉浓度。

Bleaching Test of Environmental Protective Sodium Hydrosulfite

环保型保险粉漂白试验

Determining Alkalinity and Sodium Hydrosulfite Content in Indigo Solution Using Potentiometer

电位法测定靛蓝染液中碱度及保险粉含量

Sodium persulfate being initiator and sodium hydrosulfite being reducer, aqueous solution polymerization of maleic anhydride and acrylic acid was applied to synthesize the copolymer, which can be used as STPP substitute in laundry powder.

以马来酸酐和丙烯酸为单体，以过硫酸钠为引发剂，以亚硫酸氢钠为还原剂，采用水溶液聚合法，合成了用作洗衣粉代磷助剂的马来酸酐-丙烯酸共聚物。

The principle and method of recovering of silver and regeneration of waste colour bleach fix solution with sodium hydrosulfite is described.

叙述了保险粉对废漂定液的提银及再生原理、操作方法；

Prospects of Sodium Hydrosulfite Application in Pulp and Paper Industry of China

连二亚硫酸钠在我国造纸工业中的应用前景

The results showed that the decolorizing effect of sodium hydrosulfite was the best and the bleaching ability of FAS was the highest.

结果表明，保险粉的脱色效果最好，FAS的漂白能力最佳。

In a certain range of dye concentration, dye particle size will increase with the sodium hydrosulfite, sodium hydroxide and salt concentration increased.

在一定浓度范围内，染料隐色体的粒度分布会随着保险粉、氢氧化钠和盐的浓度的增加而增大。

Effect of White Water Consistency on Sodium Hydrosulfite Bleaching of DIP and TMP Pulps

白水浓度对DIP和TMP连二亚硫酸钠漂白的影响

Application of Sodium Hydrosulfite ( Na 2S 2O 4 · 2H 2O) in Recovering of Silver and Regeneration of Waste Colour Bleach fix Solution

保险粉（Na2S2O4·2H2O）在废漂定液的提银及再生中的应用